Dataset: mesozoo_zoomass
Deployment: AII-119-4

Mesozooplankton biomass

Principal Investigator:

Hans G. Dam (University of Connecticut, UConn)

BCO-DMO Data Manager:

Cynthia L. Chandler (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Project:

U.S. JGOFS North Atlantic Bloom Experiment (NABE)

Version:

December 5, 1994

Deployment Synonyms:

NABE

Version Date:

1994-12-05

Data URL:

https://www.bco-dmo.org/dataset-deployment/450776/data

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Description

Mesozooplankton biomass

Methods & Sampling

Dataset acquisition description

   PI:              Hans Dam
   of:              University of Connecticut
   dataset:         Mesozooplankton biomass
   dates:           April 25, 1989 to May 31, 1989
   location:        N: 47.0603  S: 46.255  W: -20.2152  E: -17.6567
   project/cruise:  North Atlantic Bloom Experiment/Atlantis II 119, leg 4 and 5
   ship:            R/V Atlantis II
 
   Methodology
   See:  Dam, Hans G., Carolyn Miller and Sigrun Jonasdottir, 1993.  The trophic role of
   mesozooplankton at 47N and 20W during the North Atlantic Bloom Experiment.  Deep-Sea
   Research II, Vol. 40, N0. 12 pp 197-212.
 
   DMO Note:
   The reporting of plankton tow events was inconsistent, event numbers
   may reference a single tow or a series of tows.  Use caution in a
   merging of data from different sources.

Deployment-specific acquisition description

   PI:              Hans Dam
   of:              University of Connecticut
   dataset:         Mesozooplankton biomass
   dates:           April 25, 1989 to May 31, 1989
   location:        N: 47.0603  S: 46.255  W: -20.2152  E: -17.6567
   project/cruise:  North Atlantic Bloom Experiment/Atlantis II 119, leg 4
   ship:            R/V Atlantis II
 
   Methodology
   See:  Dam, Hans G., Carolyn Miller and Sigrun Jonasdottir, 1993.  The trophic role of
   mesozooplankton at 47N and 20W during the North Atlantic Bloom Experiment.  Deep-Sea
   Research II, Vol. 40, N0. 12 pp 197-212.
 
   DMO Note:
   The reporting of plankton tow events was inconsistent, event numbers
   may reference a single tow or a series of tows.  Use caution in a
   merging of data from different sources.

Data Processing Description

Dataset Processing Description

More information about this dataset deployment

Funding

Award Number	Funding Source
unknown NABE NSF	National Science Foundation

Instruments

Mechanical Flowmeter

Supplied Description:

A General Oceanics flowmeter mounted at the mouth of the net and a filtering cod end (mesh size 0.2 mm).

Instrument Type

Generic Name: Mechanical Flowmeter

Generic Description:

Manufactured by General Oceanics, a mechanical flow meter is used with plankton tows to determine the volume of water which flows through the net. Flow meters are also used in rivers, estuaries, canals, sewer outfalls, pipes, and harbor entrances to determine water velocity and flow distance information.

Ring Net

Supplied Name: RingNet

Supplied Description:

a 1 meter ring net fitted with a 0.2 mm mesh

Instrument Type

Generic Name: Ring Net

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/22/

Generic Description:

A Ring Net is a generic plankton net, made by attaching a net of any mesh size to a metal ring of any diameter. There are 1 meter, .75 meter, .25 meter and .5 meter nets that are used regularly. The most common zooplankton ring net is 1 meter in diameter and of mesh size .333mm, also known as a 'meter net' (see Meter Net).

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
year	year (as YYYY)	dimensionless	year
event	event number, from event log	dimensionless	event
sta	station number from event log	dimensionless	no_bcodmo_term
cast	cast/operation number, numbered consecutively within station	dimensionless	cast
depth_tow	depth of plankton tow	meters	no_bcodmo_term
aliquot	aliquot value, the reciprocal (1/value) of the fraction of the samle volume employed for the CHN measurement	1/value	no_bcodmo_term
vol_filt	volume of water filtered by the net	cubic meters	vol_filt
sizefrac	size fraction/interval of organisms analyzed	millimeters	no_bcodmo_term
C	carbon content	micrograms	no_bcodmo_term
N	nitrogen content	micrograms	no_bcodmo_term
C_mass	carbon biomass biomass values are the means of two pseudoreplicates (subsamples from one tow)	milligrams C/cubic meter	no_bcodmo_term
N_mass	nitrogen biomass	milligrams N/cubic meter	no_bcodmo_term
C_to_N	carbon/nitrogen ratio		no_bcodmo_term

Database

Contribute Data

Dataset: mesozoo_zoomass
Deployment: AII-119-4

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: mesozoo_zoomassDeployment: AII-119-4

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

Dataset: mesozoo_zoomass
Deployment: AII-119-4